Permutation-padlock



(No Model.)-

BARON PERMUTATION PADLOGK.

\ No. 494,541. Patente-dApr. 4, 1893.

" NITED STATES PATENT OFFICE.

JOHN BARON, OF LINWOOD, OHIO.

PERM UTATION-PADLOCK.

SPECIFICATION forming part of Letters Patent' No. 494,541, dated April4, 1893.

Application tiled November 2, 1892. Serial No. 450,713. (No model.)

To a/Z whom t may concern.:

Be it known that I, JOHN BARON, a citizen of the United States, residingat Linwood, in the county of Hamilton and State of Ohio, have inventedcertain new and useful Improvements in Padlocks, of which the followingis a specification, reference being had to the accompanying drawings.

The object of my invention is to provide a combination padlock, soconstructed as t admit of an approximately indenite number ofcombinations being e1fected,-the construction being cheap ofmanufacture, durable and reliable in operation and readily taken apartwhen desired to change the combination, all of which will be apparentfrom the description hereinafter given.

In the accompanyingdrawings :-Figure 1, is a front or face elevation ofa padlock embodyingmyinvention. Fig. 2,isa central transverse verticalsection of the padlock shown in Fig. l. Fig. 3, is a top view of Fig. 1.Fig. 4, is

a transverse section taken on dotted line 4, 4,

of Fig. 2. Fig. 5, is a perspective view of one of the disks which go tomake up each tumbler, said disk being removed from its sleeve; and, Fig.6, is a perspective View of the sleeve which surrounds the disk shown inFig. 5,

, said sleeve and disk combined constituting one,y ofthe tumblers, aseries of which make up the combination lock, as will more fullyhereinafter appear.

My improved padlock is preferably constructed as follows: A, representsthe body of the lock which is preferably circular in cross-section, asshown,

Vsaid body portion having a lateral extension portion of this shankengages in a contracted recess in the bottom of the body portion, onaline vertical with the opening in the cap B,-said opening and recessforming journals in which the shank of the hasp may rotate.l

rial.

the inner face of said shank by means of a iiat spring F, or otherelastic bearing mate- The lugs c project through the said recess in theside of said shank, and out beyond its outer face, as shown, said lugseacting as a lock for each of the tumblers (as will presently appear)which latter rotate on said shank.

To prevent longitudinal displacement of the strip E, it is preferred toretain the latter within the shank d by means ,of a pin e2, which latteris passed through an opening near the top of said strip and secured ateach end to said shank, as shown in Fig. 2, thusl permitting said stripto move laterally on said pin.

Each of the tumblers, on the shank of the hasp, is made up of a disk G,and sleeve H, which latter is preferably of the same width as theformer. Each disk Gr, is provided with a central opening through whichthe shank d projects, and an enlarged circular recess g (see Figs. 2 and5) within which the lugs e engage and lock against the inner face of thedisk within said annular recess. is also provided with a number oftransverse grooves g2 on its outer face, which grooves preferablycorrespond in number with the number of indicating numerals, or othercharacters, on the face of the sleeve H. O11 the inner face of saidsleeve is a rib h which engages Within one of the grooves g2 on thedisk, and in this manner said sleeve is retained on said disk in anon-rotatable position.

To prevent the sleeve H from too readily disengaging with its disk, whenthe latter is removed to change the combination, I have provided aspring wire g3, which latter rests within a peripheral groove around theouter face of said disk, said wire being adapted to spring within anotch h2 in the rib h of said sleeve, as the latter is slipped to placeon the disk; and, in this manner said sleeve will not Each disk IOOreadily drop from place when the tumbler is removed. Any other suitablepacking or catch may be employed for retaining said sleeve to place, orif desired, said spring or catch may be dispensed with withoutinterfering with the practical operation of the tumbler.

Each disk, G, is provided on its inner face, with a transverse groove J,which latter is suiiciently wide to permit the end portions of lugs e topass through the same, and thus permit the hasp D to be pulled out andunlocked in the manner presently to be described.

The sleeve H, of each tumbler, is spaced off into any desired number,and indicated by some numeral or other indicating character. In thedrawings I have illustrated my improved padlock as provided with fourtumblers, the sleeves ot' which are each provided with ten indicatingnumerals; the rst is provided with numerals from l to l0 inclusive; thesecond, from ll to 20 inclusive; the third, from 2l to 30 inclusive andthe fourth from 3l to 40 inclusive. When provided with ten indicatingnumerals, as shown, the disk is also provided with ten transversegrooves g2, in order that the sleeve may be set on said disk with anydesired numeral which is to go to make up the combination necessary tounlock the hasp.

Vhen the combination is set for 1, 20, 30 and 40, as shown in Fig. l,the sleeve of each tumbler must be set on its disk in such amanner asthat each of said combination numerals will be placed directly over thegroove J, in each disk; and, when thus set, as shown, the hasp D, shankcl and lugs e are all free to be pulled outward,said lugs passingthrough said grooves until the top lug strikes against the inner flangedportion or shoulder b of cap B, at which time the free end d2 of thehasp is lifted out of its opening in lug a2, and is unlocked, in whichunlocked position the shank d of the hasp is free to rotate within thebody portion A without removal therefrom.

It will thus be seen that the combination may be changed by simplychanging the position of any one numeral on the sleeve H,- the numeralsnecessary to unlock the hasp being those that are directly over thegroove J in each disk. The position of the lugs e, in Fig. 2, are shownon a line with said grooves, and ready to be unlocked; by simplyrotating either of said tumblers, in either direction, the hasp issecurely locked, as the lu g e will engage in the annular recess g ofthe disk and lock against the inner face of said recess. In other words,all the tumblers must beso manipulated as that the groove J in each willbe on a line with the points of lugs c, before the hasp can be unlocked.

It does not matter what position the tumblers are in when desired tolock the hasp, as each of the lugs e is beveled on its outer lower face;and,when the hasp is forced down, each lug e will strike the top of diskG, and be forced inward into the shankduntil said lugs are lowered intocontact with the annular recesses g, at which time the springF willforce the said lugs out to place therein, thus securely locking thehasp. It will be seen that the disks are free to rotate on the shank d,after being locked, in order that the tumblers may be rotated in eitherdirection to set the required combination.

The shank d is preferably provided with one or more lugs n, whichlatter, when the hasp is forced to place and locked, engage within acorresponding recess in the top of cap B, and by this means it isimpossible to unscrew said cap when the hasp is locked.

To unlock the hasp, simply rotate the tumblers (through the opening inbody A) until the required and predetermined numerals are all in line,at which time the hasp is free to be drawn outward and unlocked.

To change the combination, all that is re quired is simply to unlock thehasp, in the manner set forth and unscrew the cap B, at which time theshank d and tumblers may be removed from the body A, and any numeral canthen be' readily changed by removing the sleeve I-l, and replacing it onthe disk in such a manner as that a new numeral will be over the grooveJ. The changing of one numeral, on one tumbler, changes the wholecombination. Having changed the combination, as desired, the tu mblersare then placed over the shank d and the latter,with the tumblersthereon, is then inserted within the body portion and the cap againscrewed to place.

The device as a whole is cheap of manufacture and simple in operation.It affords all the advantages of any combination lock, many of which arequite complicated and easily get out of order. The particularconstruction of the tumblers might be advantageously used in connectionwith combination locks of a construction other than that hereinspecifically set forth.

What I claim as new, and desire to secure by Letters Patent, is

l. A padlock consisting of body portionsA a hasp D having a shank d withyielding lugs e at one side thereof, said shank and lugs being locatedwithin the portion A in a rotatable position when unlocked, the end ofsaid hasp engaging within an opening in lug 0.2 when locked, andsuitable tumblers having an internal groove J, said tumblers beingmounted on said shank, and cap B for retaining said shank and tumblerswithin said body portion, substantially as set forth.

2. The body portion A a, hasp D having shank d with rotatable tumblersmounted thereon within portion A, said shank having yielding lugs at oneside thereof, grooves J in said tumblers adapted to register with saidlugs, and cap B secured to the top of portion A, said cap having aninternal shoulder b against which the top lug e strikes when the hasp isunlocked, substantially as set forth.

IOO

IIO

8. The hasp having a shank d extending within the body portion A, thelatter having a lateral extension a, the end of said hasp engagingWithin an opening in the top of said lateral extension when locked, saidshank having yielding lugs at one side thereof, rotatable indicatingtumblers mounted on said shank, the former having a transverse grooveadapted to register with said yielding lugs on the latter, and asuitable cap forretaining said shank Within its body portion in arotatable position when the hasp is unlocked, as set forth. l

4. The tumblers, each of which consists of a disk G having an internaltransverse groove J and external grooves g2, said disk having a JOHNBARON.

Witnesses:

HARRY F. KOKING, O; HILL.

